Change History (10)

r7027: fixed a bug in the InteractiveSymbolicDiscriminantFunctionClassificationSolutionSimplifierView. The drawback is that the threshold calculation is much more complex now and can lead to an unresponsive UI as we do not calculate impacts in the background.

changed simplification view for symbolic classification solutions to use the Gini index to determine the impact of a node it describes the degree of separation of the classes and we do not have to search for the optimal threshold value each time we calculate the impact of one node.

also fixed a problem with the Gini index result of classification solutions using a discriminating function as for these solutions the Gini index is calculated twice (once for the class values and once for the output values of the discriminating function.)